Question #847

Hi

I would like to know that how can we write the commutation between Pj and a field?

I know the answer is "-ih d(field)/dx" but as Pj is in integral form I don't know how to prove it!

It's actually problem 2.4 of "quantum field theory " by mandle

thanks!

I would like to know that how can we write the commutation between Pj and a field?

I know the answer is "-ih d(field)/dx" but as Pj is in integral form I don't know how to prove it!

It's actually problem 2.4 of "quantum field theory " by mandle

thanks!

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